| 摘要 |
A ratchet wrench comprises a ratchet and a ratchet base. The ratchet base has a ratchet positioning hole for positioning the ratchet gear. A recess is formed in an inner wall of the ratchet base and hidden inside a gap where the ratchet base and a handle are connected. The recess is formed with a predetermined shape and a positioning base is placed in the recess. The positioning base has a shape suitable for being placed in the recess. A plurality of cambered concave portions are formed in the positioning base for receiving mechanical members and elastic members such that the mechanical member is directly restricted by the cambered concave portion. A fixing rod is installed at the positioning base at a side without the cambered concave portions, and a fixing hole is formed in a wall of the recess. The fixing rod is inserted into the fixing hole.
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